Track-laying attachment



Nov. 12, 1929. G. c. volT 1,735,306

TRACK LAYING ATTACHMENT Filed Sept- 18, 1928 2 Sheets-Sheet l I @Y /4/ i Inventor Grover C YO H:

Attornqy Nov. 12, 1929. G. c. vorr TRACK LAYING ATTACHMENT Filed Sept. is. 1928 2 Sheets-Sheet fn'uentpr G1" Over C .Wil'

1 I B m Attorney Patented Nov. 12, 1929 UNITED STATES GROVER o. VOIT, or norEnALn, onro TRACK-LAYING arrnoriiannr Application filed September 18, 1928. Serial no. ceases.

The present invention relates to track laying attachments for steam shovels and the like, and has for its prime object to provide means whereby a track mobile machine of this nature may, during its normal mode of operation, pick up the rails from behind, and move them around in front.

A very important object of the invention resides in the provision of a means of this nature which is simple in its construction,

.easy to manipulate, inexpensive to install,

thoroughly eflicient and reliable in use and operation, and otherwise Well adapted to the purpose for which it is designed.

With the above and numerous other objects in view, as will appear as the description proceeds, the invention resides in certain novel features of construction, and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawing:

Figure 1 is a side elevation of a machine showing my attachment mounted thereon.

Figure 2 is a top plan view thereof.

Figure 3 is a perspective View of one of the side attachments.

Figure l is a perspective view of one of the triangular frames.

Figure 5 is a perspective View of one of the brackets therefor, and

Figure 6 is an enlarged detail elevation of one of the side attachment-s.

Referring to the drawings in detail, it will be seen that the numeral 5 denotes generally the truck of a steam shovel, and the numeral 6 the turnable superstructure thereon. On each end of the true 5 adjacent the corners thereof are a pair of swingable derrick mechanisms. Each derrick mechanism includes a bracket 8 secured to the end of the truck by suitable fastening elements and having a vertical bearing 7. A right angular frame 8 is provided with bearings 9, at the ends of its shorter leg, to register with the bearing 7 and to receive a pintle pin 10 for swingably mounting the frame.

The longer le of the right triangular frame is provided with ends joined with the hypotenuse forming an extension 11. A

chain 12 is secured to this extension and has a bracket 14 atthe lower end thereof rockably supportinga lever 15. A springlG is on one end of this chain 12 and supports tongs 17 for engaging a rail.' Thus a rail maybe lifted in a convenient and easy manner and swungaround so as to be placed in alignment with other rails already in place.

A hook 19 is pivotally mounted, as at 20, on the extremity of a beam QIprOje ct-ing from the forward endof the.superstructure 6. A hook 22 is extended from'supporting structure '23, at the rear end of'the superstructure 6.

These hooks may be usedin swinging the rails around during the normal operation of the superstructure, which usually swings in about a quarter of a circle when the shovel is being operated. On each side of the superstructure 6 there is mounted a derrick mecha nism. "lhisder'rick mechanism includes a pair of bars25, secured'to'a plate 26, and extending therefrom in diverging relation ship to each other. The bars 25 are braced by rods 27, which cross each other. A rod 2-8 extends through the spaced'ends of the bars 25, and througl'i brackets 29, secured on the superstructure, so that the bars 25 may befrocked up and down. A cable 30 is secured, as at 31, to the plate 26, and is trained over the pulley 32, and is windable on a winch structure 33,-in the superstructure 6.. A 11001134. is rockably or pivotally 'engaged on the plates 26. i

From the above detailed description it will be seen that the hooks 22 and 3% may be used cooperatively in moving the rails from the rearof the steam shovel to the front thereof during. the ninety degree oscillations of the superstructure. i

The derricks on the ends of the truck 5 may be used in lifting the rails initially so that they may be engaged on the hooks 19 and 22, and also for maneuvering the rails in place. This track laying mechanism may be used in a number of diiferent ways.

, For example, the rail may be lifted by i the rear derrick mechanism and engaged on the hook 22 by suitable chains or the l'ke and then as the superstructure turns around ninety degrees, the rail may be dumped on the ground, and then When'the superstructure comes back, one of the side derrick structures may be used to lift the rail and carry 5 it around to the front of the truck and then one of the front truck derrick mechanisms may be used for maneuveiing the rail in place.

The present embodiment of the invention and the present description of its utility have been given merely for the purposes of eX- emplification. This embodiment of the invention attains the features of advantage enumerated as desirable in the statement of 1 the invention and in the above description, but it is to be understood that numerous changes in the details of construction, and in the combination and arrangement of parts may be resorted to, Without departing from the spirit or scope of the invention as hereinafter claimed, or sacrificing any of its advantages.

Having thus described my invention, what I claim is: V

1. In asteam shovel structure of the class described, a truck, a superstructure turnably mounted on the truck, and means on the superstructure for lifting rails, and means on the truck for lifting rails.

2. In combination, a steam shovel including a truck and a superstructure turnably mounted thereon, derricks on the ends of the truck, and derricks on the sides of the superstructure.

3. In combination, a steam shovelincluding a truck and avsuperstructure 'turnably mounted thereon, derricks on the ends of the truck, and derricks on the sides of the superstructure, and supporting hooks on the ends 40 of the superstructure.

4. A derrick attachment for a steam shovel including a right tri-angular frame, means for swingably mounting the frame on one of its legs, a chain suspended from the frame,

" a lever rockably mounted on the chain, a

chain on one end of the lever, and tongues mounted on the last mentioned chain.

In testimony whereof I afiix my signature.

GROVER C. VOIT. 

